# US 9,751,152 B2 · Preparation method for spiral laminate composite using compressive torsion

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,751,152 B2
- Document ID: US9751152B2
- Status: Granted
- Kind: B2
- Application number: 14/351,880
- Filed: 2012-10-02
- Published: 2014-10-09
- Granted: 2017-09-05
- Earliest claimed: 2011-10-20
- Assignees: Postech Academy-Industry Foundation
- Applicants: Postech Academy-Industry Foundation
- Inventors: Hyoung Seop Kim; Kang Hyun Choi; Dong Jun Lee; Eun Yoo Yoon
- Web page: https://patentgrep.com/patent/US9751152B2

## CPC

- B23K 20/02: by means of a press {; Diffusion bonding}
- B21K 25/00: Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components (uniting by interference- or press-fitting B23P11/02, B21K19/02)
- B23K 20/026: {with diffusion of soldering material}
- B23K 20/2333: {one layer being aluminium, magnesium or beryllium}
- B32B 15/01: all layers being exclusively metallic {(making layered metal workpieces by pressure cladding B23K20/22; making coatings with a metallic material characterised by its composition C23C30/00)}
- B23K 2103/10: Aluminium or alloys thereof
- B23K 2103/12: Copper or alloys thereof
- B23K 2103/18: Dissimilar materials
- Y10T 29/49908: Joining by deforming
- Y10T 428/12333: Helical or with helical component
- B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B21K: MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS (making particular articles by working sheet metal without essentially removing material B21D; processing wire B21F; making pins, needles or nails B21G; making particular articles by rolling B21H; forging machines, pressing machines, hammering machines, in general B21J; making chains B21L; plating B23K)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Disclosed is a preparation method for a composite which comprises the following steps: (a) preparing unit metal pieces comprising two or more types of different metals; (b) circumferentially arranging the two or more types of unit metal pieces in a mold comprising upper and lower dies; (c) applying compressive stress to the loaded metal pieces using the upper and lower dies; and (d) rotating the upper and lower dies in one or two directions to apply torque in the pressed state.

## Claims

### Claim 1

A method of preparing a laminate composite, comprising:
(a) preparing two types of unit metal specimens comprising different metals;
(b) circumferentially arranging the two types of unit metal specimens in a mold having upper and lower dies, wherein the two types of unit metal specimens are circumferentially arranged in an A-B-A-B pattern;
(c) applying compressive stress to the loaded metal specimens using the upper and lower dies; and
(d) rotating either or both of the upper and lower dies to apply torque to the metal specimens which are pressed and forming the laminate composite having a spiral laminate structure in a thickness direction.

### Claim 2 (depends on 1)

The method of claim 1, wherein properties of the composite are controlled by adjusting the number of loaded unit metal specimens in (b).

### Claim 3 (depends on 1)

The method of claim 1, wherein properties of the composite are controlled by adjusting the number of rotations in (d).

### Claim 4 (depends on 1)

The method of claim 1, wherein A is copper or a copper alloy, and B is aluminum or an aluminum alloy.

### Claim 5 (depends on 1)

The method of claim 1, wherein the unit metal specimens have a shape of a circular sector or a semicircular shape.